Goossen, F.

concept news items article method recommender · · · news item recommendation hermes framework approach similarity herme system tf-idf value athena framework ontology number vector paper concept c 1 document measure relationship cosine knowledge base fferent hermes news portal relation content-based jaccard ontology-based information di fference speci recommender systems concept ci knowledge relatedness concept c 3 semantic-based accuracy precision interest news article matrix domain ontology-based recommenders algorithm account equivalence ficity increase implementation classi concept equivalence di fferent methods domain ontology speci ficity cosine similarity measure table extension fi rst processing adaptive fi nal ranks research result google cosine measure concept c 2 conference weight neighborhood evaluation fference subsection tf-idf values retrieval